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back up (1)

Meaning: to make an extra copy of digital information on disc, flash drive, external hard drive, etc. in case the original data is lost

For example:

  • back up sth How do you back up your computer files?

  • back sth up I back most of my stuff up on one of those flash drive things.

  • back up It's a good idea to back up at least once a month.

Nouns often used as objects with
back up (1): files, data, hard drive, work

Quick Quiz:

We back up our computer files to make sure we never
  1. change them
  2. lose them
  3. keep them

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